Re: [REGRESSION] "Locked" and "Pss" in /proc/*/smaps are the same

From: Daniel Colascione
Date: Tue Jul 03 2018 - 12:20:10 EST


On Tue, Jul 3, 2018 at 12:36 AM, Vlastimil Babka <vbabka@xxxxxxx> wrote:
> +CC
>
> On 07/01/2018 08:31 PM, Thomas Lindroth wrote:
>> While looking around in /proc on my v4.14.52 system I noticed that
>> all processes got a lot of "Locked" memory in /proc/*/smaps. A lot
>> more memory than a regular user can usually lock with mlock().
>>
>> commit 493b0e9d945fa9dfe96be93ae41b4ca4b6fdb317 (v4.14-rc1) seems
>> to have changed the behavior of "Locked".

Thanks for fixing that. I submitted a patch [1] for this bug and some
others a while ago, but the patch didn't make it into the tree because
or wasn't split up correctly or something, and I had to do other work.

[1] https://marc.info/?l=linux-mm&m=151927723128134&w=2